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Clean code to printf size_t in C++ (or: Nearest equivalent of C99's %z in C++)
...isual C++ for instance use %Iu and %Id respectively, I think that gcc will allow you to use %zu and %zd.
You could create a macro:
#if defined(_MSC_VER) || defined(__MINGW32__) //__MINGW32__ should goes before __GNUC__
#define JL_SIZE_T_SPECIFIER "%Iu"
#define JL_SSIZE_T_SPECIFIER "%Id"
...
typeof for RegExp
...
You can use instanceof operator:
var t = /^foo(bar)?$/i;
alert(t instanceof RegExp);//returns true
In fact, that is almost the same as:
var t = /^foo(bar)?$/i;
alert(t.constructor == RegExp);//returns true
Keep in mind that as RegExp is not a primitive data type,...
Check whether variable is number or string in JavaScript
...ject.prototype.toString;
_.isString = function (obj) {
return toString.call(obj) == '[object String]';
}
This returns a boolean true for the following:
_.isString("Jonathan"); // true
_.isString(new String("Jonathan")); // true
...
How does having a dynamic variable affect performance?
...
void M()
{
dynamic d1 = whatever;
dynamic d2 = d1.Foo();
then the compiler will generate code that is morally like this. (The actual code is quite a bit more complex; this is simplified for presentation purposes.)
class C
{
static DynamicCallSite FooCallSite;
void...
phpunit mock method multiple calls with different arguments
...s for different input arguments? For example, I have database layer class called DB. This class has method called "Query ( string $query )", that method takes an SQL query string on input. Can I create mock for this class (DB) and set different return values for different Query method calls that dep...
Log exception with traceback
... log file
ERROR:root:Got exception on main handler
Traceback (most recent call last):
File "/tmp/teste.py", line 9, in <module>
run_my_stuff()
NameError: name 'run_my_stuff' is not defined
share
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Python Unicode Encode Error
...80\x80abcd\xde\xb4'
>>> u.encode('ascii')
Traceback (most recent call last):
File "<stdin>", line 1, in ?
UnicodeEncodeError: 'ascii' codec can't encode character '\ua000' in position 0: ordinal not in range(128)
>>> u.encode('ascii', 'ignore')
'abcd'
>>> u.encode(...
How to dynamically load a Python class
...hing like this won't work:
__import__('foo.bar.baz.qux')
You'd have to call the above function like so:
my_import('foo.bar.baz.qux')
Or in the case of your example:
klass = my_import('my_package.my_module.my_class')
some_object = klass()
EDIT: I was a bit off on this. What you're basicall...
Python __call__ special method practical example
...he following is code I wrote yesterday that makes a version of the hashlib.foo methods that hash entire files rather than strings:
# filehash.py
import hashlib
class Hasher(object):
"""
A wrapper around the hashlib hash algorithms that allows an entire file to
be hashed in a chunked m...
Easiest way to convert int to string in C++
...icking up a discussion with @v.oddou a couple of years later, C++17 has finally delivered a way to do the originally macro-based type-agnostic solution (preserved below) without going through macro uglyness.
// variadic template
template < typename... Args >
std::string sstr( Args &&....